Chemical constituents from the roots of Clerodendrum indicum and Clerodendrum villosum

Publication date: December 2015 Source:Biochemical Systematics and Ecology, Volume 63 Author(s): Pathom Somwong, Masataka Moriyasu, Rutt Suttisri Four triterpenoids (1–4), nine steroids and steroid glycosides (6–11, 13–15) and two flavonoids (17–18) were isolated from the roots of Clerodendrum indicum, whereas three triterpenoids (1, 4 and 5), six steroids and steroid glycosides (9–10, 12–14, 16) and one phenylethanoid glycoside (19) were obtained from the roots of Clerodendrum villosum. This is the first report of chemical constituents of C. villosum, and the first report of compounds 1, 3–4, 6–11 and 13–15 from C. indicum. Among the steroids isolated, six of them are the characteristic 24β-ethylsteroids with Δ25-unsaturation. Their chemotaxonomic significance within the subfamily Ajugoideae (Teucrioideae) of the family Lamiaceae is discussed.

Source: Biochemical Systematics and Ecology - October 26, 2015 Category: Biochemistry Source Type: research